Photosensitive resin composition, resin cured film and image display element
A photosensitive resin and resin curing technology, which is applied in the field of photosensitive resin compositions, can solve problems such as the inability to provide a solvent-resistant resin cured film, and achieve the effect of good developability
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[0120] Hereinafter, although an Example and a comparative example demonstrate this invention more concretely, this invention is not limited to the following Example.
[0121] In addition, in the examples and comparative examples, the silyl group equivalent is obtained by dividing the mass average molecular weight of the (A) copolymer by the average number of silyl groups per 1 molecule of the (A) copolymer. The molecular weight of the copolymer is a calculated value calculated based on the charged amount of the compound (A-2).
[0122] The synthesis example of (A) copolymer is shown below.
Synthetic example 1
[0124] 750.0 g of 3-methoxy-1-butanol was added to a flask equipped with a stirring device, a dropping funnel, a condenser, a thermometer, and a gas introduction tube, and the mixture was stirred while replacing it with nitrogen, and the temperature was raised to 88°C.
[0125] Next, 33.3 g (0.39 moles) of methacrylic acid, 149.7 g (0.52 moles) of 3-methacryloxypropyltriethoxysilane (manufactured by Shin-Etsu Chemical Co., Ltd.) and 40.3 g (0.39 moles) of styrene mol) was added to the monomer mixture of 2,2'-azobis(isobutyrate) dimethyl (polymerization initiator) 26.8 g, and the obtained substance was dripped into the said flask from the dropping funnel over 2 hours.
[0126] After the dropwise addition, it was stirred at 88° C. for 5 hours to carry out a copolymerization reaction to obtain sample 1 (weight-average molecular weight (Mw): 4500, number-average molecular weight (Mn): 2700, molecular weight distribution (Mw / Mn): 1.7, acid value : 87KOHmg / g, silyl equivalent: 480g / ...
Synthetic example 2～17
[0127] [Synthesis Examples 2-17, Comparative Synthesis Examples 1-7]
[0128] Except having used the raw material described in Tables 1-3, it carried out copolymerization reaction similarly to the synthesis example 1, and obtained samples 2-24. The weight average molecular weight (Mw), number average molecular weight (Mn), molecular weight distribution (Mw / Mn), acid value (KOHmg / g) and silyl equivalent (g / mol) of the obtained samples are shown in Tables 1-3 . Moreover, the mol% of (A-1) compound - (A-3) compound used for preparation of (A) copolymer is shown to Tables 4-6.
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[0136] (1) Storage stability
[0137] Using the obtained samples 1 to 24, storage stability was evaluated by the following method.
[0138] 10 g of each sample was weighed in a 20 ml glass container, and the viscosity was measured as a sample. In this specification, the viscosity refers to the value measured at 25°C using ...
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